Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

OracleÊý¾Ý¿â½â³ýscottÓû§Ëø

1¡¢µÇ¼·½·¨:£ºsys or systemµÇ¼
Õ˺ţºsystem
ÃÜÂ룺system as sysdba---------¡·ÃÜÂë+as sysdba
      conn system/password as sysdba
ʹÓÃÃüÁ
sql>alter user scott account unlock;
sql> commit;
Í˳öºóÓÃscott µÇ¼sqlplusʹÓÃÃÜÂëtiger£¬µÇ¼ºó»áÈÃÄãÌîдеÄÃÜÂë¡£


Ïà¹ØÎĵµ£º

OracleÖÐstart with...connect by prior×Ó¾äÓ÷¨

connect by Êǽṹ»¯²éѯÖÐÓõ½µÄ£¬Æä»ù±¾Óï·¨ÊÇ£º
select ... from tablename start with Ìõ¼þ1
connect by Ìõ¼þ2
where Ìõ¼þ3;
Àý£º
select * from table
start with org_id = 'HBHqfWGWPy'
connect by prior org_id = parent_id;
¼òµ¥ËµÀ´Êǽ«Ò»¸öÊ÷×´½á¹¹´æ´¢ÔÚÒ»ÕűíÀ±ÈÈçÒ»¸ö±íÖдæÔÚÁ½¸ö×Ö¶Î:
......

Ê·ÉÏ×îÇ¿µÄFQA for ORACLE(±¸·ÝÓë»Ö¸´²¿·Ö)

Q]ÈçºÎ¿ªÆô/¹Ø±Õ¹éµµ
Q]ÈçºÎ¿ªÆô/¹Ø±Õ¹éµµ
[A]Èç¹û¿ªÆô¹éµµ£¬Çë±£Ö¤log_archive_start=true¿ªÆô×Ô¶¯¹éµµ£¬·ñÔòÖ»ÄÜÊÖ¹¤¹éµµ£¬Èç¹ûÊǹرÕÁ˹鵵£¬ÔòÉèÖøòÎÊýΪfalse
×¢Ò⣺Èç¹ûÊÇOPS/RAC»·¾³£¬ÐèÒªÏȰÑparallel_server = true×¢Ê͵ô£¬È»ºóÖ´ÐÐÈçϲ½Ö裬×îºóÓÃÕâ¸ö²ÎÊýÖØÐÂÆô¶¯
1¡¢¿ªÆô¹éµµ
a. ¹Ø±ÕÊý¾Ý¿âshutdown im ......

oracle ×Ô¶¯Ôö³¤ÁÐ Àý×Ó

--´´½¨ÐòÁÐ
create sequence innerid
minvalue 1
maxvalue 999999999
start with 1
increment by 1
cache 20
order;
--´´½¨±í
create table users(
userid int primary key,
username   varchar2(20),
userpwd    varchar2(20)
);
select * from users;
insert into users values( ......

ÀûÓÃoracle¿ìÕÕdblink½â¾öÊý¾Ý¿â±íͬ²½ÎÊÌâ

±¾ÊµÀýÒÑÍêȫͨ¹ý²âÊÔ,µ¥Ïò,Ë«Ïòͬ²½¶¼¿ÉʹÓÃ.
--Ãû´Ê˵Ã÷£ºÔ´——±»Í¬²½µÄÊý¾Ý¿â
            Ä¿µÄ——Ҫͬ²½µ½µÄÊý¾Ý¿â
ǰ6²½±ØÐëÖ´ÐÐ,µÚ6ÒÔºóÊÇһЩ¸¨ÖúÐÅÏ¢.
--1¡¢ÔÚÄ¿µÄÊý¾Ý¿âÉÏ£¬´´½¨dblink
drop public database link dblink ......

oracleÖжÔÏó±í£¬ref¼°derefµÄÒ»¸öʵÀý¡£

ORACLEÔÚ¹ØÏµÊý¾Ý¿âÍ⣬ÈÚÈëÁËÃæÏò¶ÔÏóµÄÔªËØ£¬±ÈÈç¿ÉÒÔ´´½¨type£¬typeÖ®¼ä¿ÉÒԼ̳У¬type¿ÉÒÔ´ø¹¹Ô캯Êý¡¢ÅÅÐòº¯Êý¡¢¸÷ÖÖ¸÷ÑùµÄ³ÉÔ±º¯Êý¡¢´æ´¢¹ý³ÌµÈµÈ¡£
¶ÔÏó±íÊÇÖ¸¸Ã±íµÄÒ»ÐоÍÊÇÒ»¸ö¶ÔÏó£¬ÓÐÒ»¸öOID(object ID)£¬¶ÔÏó±íÖ®¼äûÓÐÖ÷Íâ¼ü¹ØÁªµÄ¸ÅÄΪÁËÌåÏÖÕâ²ã¹ØÏµ£¬oracleÖÐÓÃÁËref¶ÔÏóÀ´ÊµÏÖ¡£
ÏÂÃæÀý×Ó£¬´´½¨Ò»¸öµ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ